Carving a Gamble Piece of Boulder Opal

I got a mystery opal out of my box which shows some promise but will it turn in to anything useful. ALWAYS WERE AT MINIMUM A RESPIRATOR WHEN CUTTING ANY STONES and water is a must, not only for minimising dust, but it also helps in reducing heat in a stone to avoid damage. The grit of what i used were as followed Rotary bits 280 Nova Point 600 Nova Point 1,200 Nova Point 8,000 Nova Point 14,000 Nova Point 50,000 Nova Point Dremel 3000 with attachment handpiece. Then just a standard dremel chuck in the end for easy of adjustability. Cut Stones Can be seen or purchased here, I also occasionally make jewellery also - https://www.etsy.com/uk/shop/ShinySea... ****Background Music Credits**** Tropical Sensation by Mike Leite   / mikeleite   Creative Commons — Attribution 3.0 Unported — CC BY 3.0 Free Download / Stream: https://bit.ly/-tropical-sensation Music promoted by Audio Library    • Video   Flight by LiQWYD   / liqwyd   Creative Commons — Attribution 3.0 Unported — CC BY 3.0 Free Download / Stream: https://bit.ly/flight-liqwyd Music promoted by Audio Library    • Flight – LiQWYD (No Copyright Music)